Aerosol pollution in a megacity of southwest China inferred from variation characteristics of sulfate-δ 34 S and water-soluble inorganic compositions in TSP
文献类型:期刊论文
作者 | Zhou Yang; Xiaodong Li; Shilu Wang; Qinkai Li; Jun Huang; Gaoyang Cui |
刊名 | Particuology |
出版日期 | 2019 |
卷号 | 43页码:202-209 |
关键词 | Aerosol Pollution variation Characteristics sulfate-34s total Suspended Particle |
英文摘要 | Daytime and nighttime aerosol samples for total suspended particles (TSP) were collected in Chengdu from 12 to 23 January 2013 (winter) and 10 to 21 August 2014 (summer). The mass concentrations of TSP, major inorganic ions, and stable sulfur isotope ratios were determined. Clear winter–summer variationinTSP was observed;themass concentrations of TSP insummer were below levels defined by the Chinese National Ambient Air Quality Standard (GB3095-2012), whereas winter TSP levels exceeded the standard by 2–4 times. Overall,the sum of SO4 2−, NO3 −, and NH4 + concentrations represented the highest contribution to water-soluble ionic components, which showed similar trends to TSP mass. According to correlations among major ions, the major compounds in TSP were likely to be (NH4)2SO4, NH4NO3, CaCl2, and KCl in both sampling times, and CaSO4 and Ca(NO3)2 were also present in summer. The NO3 −/SO4 2− ratios ranged from 0.57 to 1.28 (average 0.85 ± 0.16) in winter and 0.5 to 0.93 (average 0.66 ± 0.11) in summer, indicating stationary source emissions (coal burning) were more important sources than the vehicle exhaust. The relationship between SO4 2− and 34S indicated the sulfate sources were affected by the low sulfur isotope value of biogenic sulfur release in summer, and the high sulfur isotope value of coal in winter. As a whole, the mixture of coal burning and vehicle exhaust represent the major TSP sources in Chengdu in the study period, and biogenic sulfur also contributes to TSP in summer |
语种 | 英语 |
源URL | [http://ir.gyig.ac.cn/handle/42920512-1/10887] |
专题 | 地球化学研究所_环境地球化学国家重点实验室 |
作者单位 | 1.Department of Tourism and Geography, Tongren University, Tongren 554300, China 2.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guizhou 550081, China 3.Institute of Surface-Earth System Sciences, Tianjin University, Tianjin 300072, China |
推荐引用方式 GB/T 7714 | Zhou Yang;Xiaodong Li;Shilu Wang;Qinkai Li;Jun Huang;Gaoyang Cui. Aerosol pollution in a megacity of southwest China inferred from variation characteristics of sulfate-δ 34 S and water-soluble inorganic compositions in TSP[J]. Particuology,2019,43:202-209. |
APA | Zhou Yang;Xiaodong Li;Shilu Wang;Qinkai Li;Jun Huang;Gaoyang Cui.(2019).Aerosol pollution in a megacity of southwest China inferred from variation characteristics of sulfate-δ 34 S and water-soluble inorganic compositions in TSP.Particuology,43,202-209. |
MLA | Zhou Yang;Xiaodong Li;Shilu Wang;Qinkai Li;Jun Huang;Gaoyang Cui."Aerosol pollution in a megacity of southwest China inferred from variation characteristics of sulfate-δ 34 S and water-soluble inorganic compositions in TSP".Particuology 43(2019):202-209. |
入库方式: OAI收割
来源:地球化学研究所
其他版本
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。